Hi there,
since my last thread has gone wild ;-) ... here comes a new one.
I just checked the PCB again for any visual problems
but didn't find any. And then I did the measurements again.
I now have -0.1 to -0.15V on J3+ (yes, MINUS). Still zero V at TP1.
Any idea how this voltage could get the
Tom,
With the amp disconected from the control board J4, what is on J8 pin 7?
That's with both the K2 and the Amp powered.
73, Kurt
___
Elecraft mailing list
Post to: Elecraft@mailman.qth.net
You must be a subscriber to post to
-Original Message-
From: Don Wilhelm [mailto:[EMAIL PROTECTED]
Sent: Wednesday, July 21, 2004 3:02 PM
To: [EMAIL PROTECTED]; Elecraft
Subject: Re: [Elecraft] KPA100 voltage measurements?
Tom,
I have not yet seen a reply on the reflector to your questions, so I will
try to give you some
Tom,
I have not yet seen a reply on the reflector to your questions, so I will
try to give you some information.
The voltage at U5 pin 1 will depend on the reflected voltage sensed by D17
and the setting of R27 - if you are measuring the voltage under transmit
conditions, do you have a good dummy
Hello All,
Am on page 23; KPA100 test points and have two problems:
U5 Pin 1 should be 0 to 0.1; I get 2.4
U6 Pin6 should be 0 to 0.5; I get 28v!
Any ideas or where to look? All other measurements were either right on or
within the +/- 10%.
73
Tom
K6CT
"Once one has reach
5 matches
Mail list logo
